The Takamine G-Series TV3N Preamp
The TV-3N is a compact yet powerful signal processing preamp designed to produce a natural, warm acoustic guitar tone at high volumes. Tone is shaped using three bands of EQ with rotary knobs controlling the BASS, MIDRANGE and TREBLE frequency bands in a cut and boost configuration. Output is controlled with a rotary volume knob.
A chromatic tuner is on board and is activated with a push button marked "Tuner". The readout is digital and will display the note being played. Sharp and flat is indicated by arrows. The tuner on button also acts as a mute for silent on-stage tuning. To shut off the tuner and mute function simply hold down the "Tuner" button for 3 seconds. The tuner display will shut off and the signal will be restored.